From 79d0c1d26e1eac0dc5b201e66b65cc5e4e706743 Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Fri, 10 Feb 2012 15:04:34 +0000 Subject: [PATCH] r8169: Support RX-FCS flag. This allows the NIC to receive the Ethernet FCS and pass it up the stack, allowing sniffers and other interested programs to inspect the FCS. Signed-off-by: Ben Greear --- drivers/net/ethernet/realtek/r8169.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 0517a6a252f1..fbd855bcd9f0 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4186,6 +4186,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) dev->hw_features &= ~NETIF_F_HW_VLAN_RX; dev->hw_features |= NETIF_F_RXALL; + dev->hw_features |= NETIF_F_RXFCS; tp->hw_start = cfg->hw_start; tp->event_slow = cfg->event_slow; @@ -5773,7 +5774,10 @@ static int rtl_rx(struct net_device *dev, struct rtl8169_private *tp, u32 budget process_pkt: addr = le64_to_cpu(desc->addr); - pkt_size = (status & 0x00003fff) - 4; + if (likely(!(dev->features & NETIF_F_RXFCS))) + pkt_size = (status & 0x00003fff) - 4; + else + pkt_size = status & 0x00003fff; /* * The driver does not support incoming fragmented